Physical Science: Kinetic Energy

Energy of motion is called _____ energy.

• thermal

• potential

• kinetic

• nuclear

If you increase the mass of an object, it's kinetic energy:

• decreases

• increases

• stays the same

• disappears

If you decrease the speed of an object, it's kinetic energy:

• decreases

• increases

• stays the same

• you'd have to measure it

What happens to the total energy in a system before/after a collision?

• it increases

• it decreases

• it stays the same

• there's no way to tell

A small car and a large semi truck are both traveling at 50mph. Which has more KE?

• the car

• the semi truck

• neither

• they both have an equal amount

An object's KE is directly related to what 2 things?

• speed & distance

• mass & distance

• mass & speed

• power & speed

T/F: Atoms have kinetic energy.

• True

• False

What happens to the KE when 2 objects collide?

• it disappears

• it transfers between the objects

• they gain more KE through the air

• nothing happens

What happens to atoms when you increase their temperature?

• it increases their speed

• it decreases their speed

• it decreases KE

• it doesn't do anything

Two cars have the same mass. One is traveling 25mph, the other 75mph. Which has more KE?

• the one going 25mph

• the one going 75mph

• they have the same KE

• there's no way to tell